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2 years ago

5

Heyyyyyyyyyyyyyyyyyyy

1 answer:

lesantik [10]2 years ago

5 0

Answer:

the equation should have been 20/_200_= 10/100

Step-by-step explanation:

the error kate made was that she put 20 as the denominator instead of the numerator. putting 20 as the denominator implies that kate attempted a total of 20 free throws. But that's not the case. 20 should have been the numerator because thats the amount of free throws she made and we are trying to figure out the total amount she attempted.

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Alex17521 [72]

Answer: 9.7 seconds

Step-by-step explanation:

$16t^2=1503\\\\t^2 =\frac{1503}{16}\\\\t=\sqrt{1503/16} \text{ } (t > 0)\\\\t \approx 9.7$

4 0

1 year ago

Help please no need for explanation

dusya [7]

It would be A=45, but i don't understand why you have a 3 above your answer

8 0

3 years ago

Read 2 more answers

A random sample of 10 parking meters in a beach community showed the following incomes for a day. Assume the incomes are normall

Vlad1618 [11]

Answer: (2.54,6.86)

Step-by-step explanation:

Given : A random sample of 10 parking meters in a beach community showed the following incomes for a day.

We assume the incomes are normally distributed.

Mean income : $\mu=\dfrac{\sum^{10}_{i=1}x_i}{n}=\dfrac{47}{10}=4.7$

Standard deviation : $\sigma=\sqrt{\dfrac{\sum^{10}_{i=1}{(x_i-\mu)^2}}{n}}$

$=\sqrt{\dfrac{(1.1)^2+(0.2)^2+(1.9)^2+(1.6)^2+(2.1)^2+(0.5)^2+(2.05)^2+(0.45)^2+(3.3)^2+(1.7)^2}{10}}$

$=\dfrac{30.265}{10}=3.0265$

The confidence interval for the population mean (for sample size <30) is given by :-

$\mu\ \pm t_{n-1, \alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given significance level : $\alpha=1-0.95=0.05$

Critical value : $t_{n-1,\alpha/2}=t_{9,0.025}=2.262$

We assume that the population is normally distributed.

Now, the 95% confidence interval for the true mean will be :-

$4.7\ \pm\ 2.262\times\dfrac{3.0265}{\sqrt{10}} \\\\\approx4.7\pm2.16=(4.7-2.16\ ,\ 4.7+2.16)=(2.54,\ 6.86)$

Hence, 95% confidence interval for the true mean= (2.54,6.86)

7 0

3 years ago

Which value would be a solution for × in the inequality 47-4×<7

Bad White [126]

Step-by-step explanation:

47-4x<7

-4x<7-47

-4x<-40

x>(40÷4)

x>10

6 0

3 years ago

3 less than a number p is 25

Goryan [66]

Answer:

The number is 28

Step-by-step explanation:

<u>Step 1: Make an expression </u>

$p - 3 = 25$

<u>Step 2: Add 3 to both sides </u>

$p - 3 + 3 = 25 + 3$

$p = 28$

Answer: The number is 28

5 0

3 years ago